Perturbative approach to flat Chern bands in the Hofstadter model
We present a perturbative approach to the study of the Hofstadter model for when the amount of flux per plaquette is close to a rational fraction. Within this approximation, certain eigenstates of the system are shown to be multicomponent wave functions that connect smoothly to the Landau levels of...
| Main Authors: | , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
American Physical Society
2014
|